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Surface-Mount LEDs
Jan 2010
Marktech OptoelectronicsRequest Info
LATHAM, N.Y., Jan. 28, 2010 – Marktech Optoelectronics has launched the MTPS4088CP surface-mount point source LED that is designed to deliver precise and consistent performance in demanding environments where space constraints are an issue.

The 880-nm RoHS-compliant LED is housed in a 3.5 × 0.94 × 2.2-mm package with a domed lens, and it produces typical power output of 3 mW. Developed for optical encoder, optical switch, scanning and precision edge-sensing applications, the ±20º device uses an LED die configuration that provides an unobstructed radiated beam pattern by masking the die and relocating the topside electrode. By eliminating the “dark spot” typically associated with the center of conventional LEDs, the point source LED yields good results when used with application-specific optics to obtain the desired radiation pattern characteristics. It also offers a low thermal coefficient.

The LED is supplied with or without optics to provide the designer with flexibility in design. Those that come with factory optics provide a narrow near parallel radiation pattern. The optical-grade parabolic glass lens is designed to optimize the effects of the point source chip. Devices without optics are supplied with a glass window, allowing the designer to use proprietary collimating or other application-specific optics to take full advantage of the undistorted beam.

The emitting window diameter is 50 µm, forward current is 80 mA, reverse voltage is 5 V, power dissipation is 150 mW, and operating temperature is from -20 to ~80 °C.


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lenses880-nmAmericasdomed lensglass windowLEDslight sourcesMarktech OptoelectronicsMTPS4088CPoptical encoder applicationsoptical switch applicationsopticsparabolic glass lensPoint Sourceprecision edge-sensingProductsRoHS-compliantscanning applicationssurface-mountunobstructed radiated beam patternwithout optics

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